product manual for high alumina cement for … · tolerances given in annex b and clause 9.2 of is...
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![Page 1: PRODUCT MANUAL FOR HIGH ALUMINA CEMENT FOR … · tolerances given in Annex B and clause 9.2 of IS 6452 : 1989. Such adjustments for each nozzle shall be recorded in Form 1 under](https://reader034.vdocuments.mx/reader034/viewer/2022042108/5e88e906f393d554a4066f84/html5/thumbnails/1.jpg)
PM/ IS 6452/ 1/ January 2019
1
PRODUCT MANUAL FOR
HIGH ALUMINA CEMENT FOR STRUCTURAL USE
ACCORDING TO IS 6452: 1989
This Product Manual shall be used as reference material by all Regional/Branch Offices &
licensees to ensure coherence of practice and transparency in operation of certification under
Scheme-I of Bureau of Indian Standards (Conformity Assessment) Regulations, 2018 for
various products. The document may also be used by prospective applicants desirous of
obtaining BIS certification licence/certificate.
1. Product : IS 6452 : 1989
Title : HIGH ALUMINA CEMENT FOR STRUCTURAL USE
No. of Amendments : 5
2. Sampling Guidelines:
a) Raw material : Not applicable
b) Grouping guidelines : Not applicable
c) Sample Size : 8 Kg for Physical test and 1 kg for chemical test
3. List of Test Equipment : Please refer ANNEX – A
4. Scheme of Inspection
and Testing : Please refer ANNEX – B
5. Possible tests in a day :
(i) Alumina content (Clause 4.1)
(ii) Fineness (Clause 4.2)
(iii) Soundness (Clause 4.3)
(iv) Initial Setting time (Clause 4.4)
6. Scope of the Licence :
Licence is granted to use Standard Mark as per IS 6452 : 1989 with the following scope:
Name of the product HIGH ALUMINA CEMENT FOR STRUCTURAL USE
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PM/ IS 6452/ 1/ January 2019
ANNEX A
List of Test Equipment
Major test equipment required to test as per the Indian Standard
S. No. Tests used in with Clause
Reference Test Equipment
1 Fineness
(Clause 4.2)
Blaine’s apparatus variable flow type
Stop watch with start-stop mechanism
Mercury for calibration
Balance, Standard weights
Standard Cement
Manometer liquid (di-butyl phthalate or light
mineral oil.)
Mercury of reagent grade or better, Pyknometer
Circular discs of filter paper of medium porosity
(mean pore diameter 7 µ).
Le-Chatelier’s flask
Constant temperature water bath to maintain temp.
within ± 0.1 ° C
2 Soundness by Le-chatelier
Method
(Clause 4.3)
Le-Chatelier’s water bath preferably with
thermostatic control raising temperature from
27 ± 2 0 C to boiling in 27 ± 3 minutes
Le-Chatelier’s moulds with weights and cover
glasses minimum 8 nos.
Humidity chamber with temperature & RH control
27 ± 2 0 C, RH 90 to 100 %
Steel scale 12" (304.8 mm) with LC 0.5 mm
3 Setting time
(Clause 4.4)
Vicat apparatus
Needles
Moulds
Stop Watch
Balance - 1000g ± 0.1g and Standard Weights
1mg to 500 gm
Gauging trowel of weight 210 ± 10 g
4 Compressive Strength
(Clause 4.5)
Vibration machine with timer & cube mould fitting
assembly 12000 ± 400 vibration per min.
Compressive Strength machine
Poking Rod , Petroleum Jelly
Proving ring with all accessories suitable for
calibration of CST machine
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PM/ IS 6452/ 1/ January 2019
Tachometer
Cube Moulds 70.6 × 70.6 mm, Poking rod
Gauging trowel (210 ± 10 g)
gauging plate, stainless steel(non-perforated)
Standard sand grade 1, 2 and 3 (as per IS 650)
Curing tank of appropriate size with water
circulation arrangement
Graduated glass cylinders 150 to 200 ml
Humidity chamber with temperature & RH
Control 27 ± 2° C, RH 90 to 100 %
Arrangement for maintaining temperature during
test at 18 ± 2° C
5 General equipments for Cement testing
To control humidity &
temperature in lab
1. Humidity chamber with temperature & RH
control 27 ± 2°C, RH 90 to 100 %
2. Suitable arrangement to demonstrate
maintenance of temp. of 27 ± 2 ° C & RH 65 ± 5%
constantly
For cement Sampling Mixing trays –adequate size including trays of 24
partitions for keeping hourly samples
To control the residue of cement Sieves of size (300, 212, 150, 90, 75 & 45µ)
To measure temperature
Thermometers
Lab ball mill (motorized)
To grind the clinker, slag & gypsum sample in lab
ball mill for testing
To weigh the material 1. Platform type balance
2. Electrical balance
3 Weight box with weights (1 mg - 500 g)
6 General test equipments for chemical testing Clause 4.1 of IS 6452 : 1989
Muffle Furnace with thermostatic control,
Range 0 – 1200° C
Oven with thermostatic control 0-300° C
Heater and hot plate
Distillation Assembly
Crucible: Platinum or Porcelain / silica
Filter paper (No- 1, 40, 41, 42)
Desiccators with cover & Desiccant
Water bath
pH meter/paper
Glassware - volumetric flask -0-250 ml, beaker 0-
250 ml, measuring cylinder 0-50,100,500, 1000 ml,
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PM/ IS 6452/ 1/ January 2019
burette 0-25/50 ml, conical flasks-
0-250 ml, pipette 0-5,10, 25, 50 ml
Tongs including platinum tipped tong
Wire gauge with asbestos sheet at the middle
Washing bottle
Mortar mixer- 4.75 l
Glass thermometer
All required chemicals as per IS 4032 for
determination of alumina.
The above list is indicative only and may not be treated as exhaustive.
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ANNEX B
Scheme of Inspection And Testing
1. LABORATORY - A laboratory shall be maintained which shall be suitably equipped
(as per the requirement given in column 2 of Table 1) and staffed, where different tests given
in the specification shall be carried out in accordance with the methods given in the
specification.
1.1 The manufacturer shall prepare a calibration plan for the test equipments. The following equipments shall be calibrated at a frequency shown against each and records kept.
2. TEST RECORDS – The manufacturer shall maintain test records in various formats,
Form 1 to Form 17 for the tests carried out to establish conformity.
3. LABELLING AND MARKING – Labeling and marking shall be as given below: 3.1 STANDARD MARK - The Standard Mark, as specified by BIS, shall be printed or stenciled on each bag or drum of High Alumina Cement for Structural use or on the label applied to it, provided the material in each bag or package to which the mark thus applied conforms to the specification. The size of the Standard Mark shall be either 160 x 120 mm or 80 x 60 mm for packing in quantity of 50 kg and above. For other packing of lower quantity, a photographic reduction is permitted. 3.2 MARKING - As per the requirements of IS 6452: 1989.
3.2.1 In addition to above, following marking shall also be marked:
a) Name of original manufacturer of cement with BIS licence number in case of
repacking unit.
Sl. No. TEST EQUIPMENT FREQUENCY OF CALIBRATION
1. Blaine’s apparatus Daily with licensee’s own Standard cement sample and
monthly with standard cement samples supplied by
NCCBM.
2. Compressive
strength Testing
machine
Once in a month with Licensee’s own Proving Ring and
the Proving Ring shall be Calibrated once in two years
from a NPL/NABL Accredited Calibrating body or NPL
or NPL accredited Proving Ring manufacturer.
3. Autoclave pressure
gauge
Once in a month by licensee’s own dead weight pressure
gauge tester OR once in six months from accredited
calibrating body or NPL/NABL accredited manufacturer
of such gauges.
4. Vibration machine Once in a month by licensee’s own Tachometer. The
tachometer shall be calibrated once in a year from
NPL/NABL accredited outside agency.
5. Dead weight
pressure gauge
Tester (if available)
Once in four years from NABL accredited Tester (if
available) Lab or OEM (Original Equipment
manufacturer) having NPL/NABL accredited calibrator.
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b) Any other marking required under provisions of Legal Metrology Act, 2009 and
Legal Metrology (Packaged Commodities) Rules, 2011 framed thereunder.
3.2.2 All the information including BIS Standard Mark except Manufacturers Registered
Trade Mark shall be applied on each bag in BLACK COLOUR.
Note :
1. For each calendar year, the first week shall be counted as 7 days from 1st of January
and subsequent weeks numbered serially accordingly. The bags shall be marked as
W 0l/MM/YY…… W 51/MM/YY……. etc.
2. Label mentioned at 3.1 and 3.2 above shall be attached to the seal of the container.
The seal shall be of such a design that it shall automatically get destroyed on opening.
3. The colour of the bag and background colours should be in contrast to the colour of
the Standard Mark and the details so that the markings are conspicuous.
4. CONTROL UNIT –
4.1 For manufacturing units of High Alumina Cement for Structural use: The tests, as
indicated in Table 1 attached and at the levels of control specified therein, shall be
carried out on the whole production of the factory which is covered by this scheme and
appropriate records maintained in accordance with clause 2 above.
4.2 For packing of High Alumina Cement for Structural use at bulk cement terminal: The tests, as indicated in Table 2 attached and at the levels of control specified therein, shall
be carried out on the whole packing of High Alumina Cement for Structural use and
appropriate records maintained in accordance with clause 2 above.
4.2.1 For bulk packing units as per clause 4.2, all cement of one consignment received shall
constitute one batch.
4.2.2 Batch mixing may be permitted for packing units, which are extended packing terminals
of the same cement manufacturer (licensee) subject to packing units obtaining test certificates
from the manufacturer and keeping proper records. If the cement is received from different
units of the same manufacturer (different licensees) batch mixing of cement is not permitted.
The Batch integrity shall be ensured at all stages of packing and the packer shall maintain
appropriate controls and checks to ensure that there is no chance of mix up of different
batches. Adequate care shall be taken to avoid spoilage during handling, packing and
storage.
4.2.3 If bulk packing unit is instructed by BIS for suspension of licence due to the failure of the samples, such instruction will automatically apply to the original manufacturer of the cement, as per relevant suspension of licence guidelines. An undertaking to this effect shall be obtained from the bulk packers and the original cement manufacturer.
4.2.4 Test Certificate of each original batch of cement shall be obtained from the supplier and
test results recorded. On the basis of tests and inspection, the decision regarding conformity
or otherwise of the consignment/batch to a given requirement shall be taken. 4.3 WEIGHMENT – One filled bag from each nozzle shall be taken at random twice in each
shift of operation and weight checked in case of electronic packers with recorders. In all other
cases one filled bag from each nozzle shall be checked once in two hours. The records shall
be maintained in Form 1. The bag shall be so chosen for weighment such that bags from each
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nozzle are taken for weighment. The weighing and packing machines shall be adjusted as and
when necessary in such a way that net quantity of each bag shall be in accordance with the
tolerances given in Annex B and clause 9.2 of IS 6452 : 1989. Such adjustments for each
nozzle shall be recorded in Form 1 under remarks column.
4.3.1 For packing of High Alumina Cement for Structural use in bulk cement terminal
weighment of hourly check of mass of drums also shall be done in addition to weighment of
bags mentioned in para 4.3 above. The records of weighments shall be maintained in Forms 9
and 11.
4.4 RAW MATERIALS
4.4.1 Routine analysis of various raw materials used in the manufacture of High Alumina
Cement for Structural use shall be made at intervals of a month or whenever there is a
change in the source/mine area stratification whichever is earlier and appropriate records
of the analysis and of the Physical composition of the mixtures shall be maintained in
Form 2. This analysis is not applicable for Packing Units of High Alumina Cement for
Structural use at bulk cement terminal.
4.5. PACKING - The Cement shall be packed in bags as specified in clause 9.1 of
IS 6452 : 1989. A test certificate either from the manufacturer or from any recognized
testing laboratory shall be received along with each consignment of bags. Alternatively
the samples of bags from each consignment shall be tested by the cement manufacturer
either in his own laboratory or any other BIS recognized laboratory before they are used
for packing cement. No testing would be necessary if the bags carry BIS Certification
Mark. The bag shall be in good condition at the time of packing.
5. LEVELS OF CONTROL - The tests as indicated in column 1 of Table 1 and the levels of
control in column 3 of Table 1, shall be carried out on the whole production of the factory
which is covered by this plan and appropriate records maintained in accordance with clause 2
above.
5.1. PRODUCTION DATA - The licensee shall send to BIS a statement of quantity
produced, marked and exported by him and the value thereof at the end of each quarter of the
operative period as per the enclosed proforma and shall also submit these details to BIS at
the end of the operative year duly authenticated by a Chartered Accountant.
6. REJECTIONS – Disposal of non-conforming product shall be done in such a way so as to
ensure that there is no violation of provisions of BIS Act, 2016.
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TABLE 1
(1) (2) (3)
Test Details Test equipment
requirement
R: required (or)
S: Sub-
contracting
permitted
Levels of Control
Cl. Requirement Test Methods Clinker stage Grinding stage Packing stage Remarks
Clause Reference
4.1 Alumina
content 4.1
IS 6452
IS 4032 R
Daily composite
sample Daily composite sample
Weekly composite
sample -
4.2 Fineness 4.2 IS 6452
IS 4031 (Part 2) R -
a) Every alternate hour
from each cement mill
b) Daily composite
sample
Daily composite
sample -
4.3 Soundness 4.3 IS 6452
IS 4031 (Part 3) R - Daily composite sample
Daily composite
sample -
4.4 Setting time 4.4 IS 6452
IS 4031 (Part 5) R - Daily composite sample
Daily composite
sample -
4.5 Compressive
strength 4.5
IS 6452
IS 4031 (Part 6) R - Daily composite sample
Daily composite
sample -
Note 1: Composite sample shall be made out of hourly samples for the required period (Pl see IS 3535 Methods of sampling hydraulic cements).
If cement is manufactured using same proportion of raw materials from more than one cement mill, sample from each mill shall be tested for
fineness as per the above table. For all other parameters composite samples from all the mills shall be tested.
If cement is manufactured using different proportion of raw materials from more than one cement mill, sample from each mill shall be tested for
all requirements as per the above table.
Note 2: For manufacturing units where there is no packing silo and cement is packed directly from cement grinding, the frequency of tests specified for
cement grinding stage would apply for the various tests to be carried out on samples taken from cement mill spouts.
Note-3: Sub-contracting is permitted to a laboratory recognized by the Bureau or Government laboratories empaneled by the Bureau.
Note-4: The control unit and levels of control as decided by the by the Bureau are obligatory to which the licensee shall comply with.
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Table 2 Level of Control (Bulk Packing Unit)
Note-1: Sub-contracting is permitted to a laboratory recognized by the Bureau or Government laboratories empaneled by the Bureau.
Note-2: The control unit and levels of control as decided by the by the Bureau are obligatory to which the licensee shall comply with.
(1) (2) (3)
TEST DETAILS Test equipment
requirement
R: required (or) S:
Sub-contracting
permitted
RECOMMENDED LEVELS OF CONTROL
Clause Requirement Test Methods
Clause Reference
Number of
samples
Frequency Remarks
4.2 Fineness 4.2 IS 6452
IS 4031 (Part 2)
S One Each batch -
4.3 Soundness 4.3 IS 6452
IS 4031 (Part 3)
S One Each batch
4.4 Setting time 4.4 IS 6452
IS 4031 (Part 5)
S One Each batch
4.5 Compressive
strength 4.5
IS 6452
IS 4031 (Part 6)
S One Each batch
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Form No. 1
FORMAT FOR MAINTENANCE OF TEST RECORDS WEIGHMENT CONTROL AT PACKING STAGE
Date Shift Time (Hourly) No. of Bags Net mass of bags from nozzles Remark.
Form No. 2
RAW MATERIAL TESTING
Date of receipt of
material
Date of
testing
Name of Material Source of supply and consignment
No.
Details of analysis for specified requirements
Form 3
PRODUCTION DATA
(POST GRINDING DETAILS OF PRODUCTION ACCEPTED AND REJECTED FOR STANDARD MARK)
Shift Quantity Passed for Standard mark Rejected Remark
Form No. 4
CLINKER CHEMICAL COMPOSITION (DAILY COMPOSITE SAMPLE)
Date of manufacture Al2O3 Sample
Pass/Fail
Remarks
Form 5
HIGH ALUMINA CEMENT FOR STRUCTURAL USE (GRINDING) (Daily/Weekly Composite sample)
Date of grinding Al2O3 Fineness Soundness
(Le-chatelier)
Setting Time
Initial & Final
Compressive strength Sample
Pass/Fail
Action taken if
sample fails 24 h 72 h
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Form No 6
HIGH ALUMINA CEMENT FOR STRUCTURAL USE GRINDING (For Alternate Hourly Sample)
Date of grinding Time Fineness Sample
Pass/Fail
Mode of disposal or action taken if sample fails
Form No 7
HIGH ALUMINA CEMENT FOR STRUCTURAL USE PACKING STAGE (Daily/Weekly Composite Sample)
Form No 8
CALIBRATION
Sl. No
Date of
calibration
Result of Calibration (Test records indicating details of standard values and
observed values for each equipment to be kept in proforma for which various
columns be devised; as required)
Name of equipment
Action taken if equipment found
defective
Sl.No.
(If any) &
Remarks
Note : The above records are to be kept separately for each equipment.
Date of Packing Al2O3 Fineness Soundness
(Le-chatelier)
Setting Time
Initial & Final
Compressive strength Sample
Pass/Fail
Action taken if
sample fails 24 h 72 h
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RECORDS TO BE MAINTAINED AS PER TABLE-2 OF SIT (BY BULK PACKING UNIT)
Form No. 9
FORMAT FOR MAINTENANCE OF TEST RECORDS WEIGHMENT CONTROL AT PACKING STAGE
HOURLY CHECK OF MASS OF DRUMS
Date Time (Hourly) Condition of Drums Net quantity of cement Record of calibration of weighing scale and Date of calibration.
Form No. 10
FORMAT FOR MAINTENANCE OF RECORDS FOR THE CONDITIONS OF THE EMPTY DRUMS/BULKERS
FOR PACKING CEMENT
Date No. of empty drums/Bulkers checked No. of empty drums/Bulkers rejected Reasons/Remarks Sign of firms inspector
Form No. 11
FORMAT FOR MAINTENANCE OF TEST RECORDS WEIGHMENT CONTROL AT PACKING STAGE
HOURLY CHECK OF MASS OF BAGS
Date Shift Time(Hourly) No of Bags Net quantity of Bags from Nozzles Records of calibration/date of calibration of nozzles
Form No. 12
RECEIPT OF CEMENTS
Date of receipt Batch No. Supply received from Test Certificate No
Form No. 13
CEMENT DISPATCH DATA FROM PACKING
Date Quantity Passed for Standard Mark Rejected (if any) Reasons for not marking/Method of disposal
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1.
Form No 14 & 15
TEST DONE AT FACTORY (At receipt stage and at bulk packing terminal)
2.
Date Batch No. Fineness Setting Time Remarks
3.
Form No 16 & 17
HIGH ALUMINA CEMENT FOR STRUCTURAL USE (PHYSICAL TEST REPORT) (At receipt stage and at bulk packing terminal)
Date Batch No. Test Report Soundness Compressive Strength Remarks
LC 24 h 72 h